JP2003223327A - Portable terminal device and its program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To write a new BIOS (basic input output system) stored in an I/O box as substitute for an already existing BIOS incorporated in a portable terminal device main body in a state that the portable terminal device is mounted on and connected to the I/O box, and to selectively execute processing based on the new BIOS or processing based on the already existing BIOS according to the presence/absence of the new BIOS. <P>SOLUTION: A portable terminal device 1 judges whether to fetch a new BIOS based on the new BIOS stored in an I/O box 3 in a state that the portable terminal device is mounted on the I/O box 3, and when it is necessary to fetch the new BIOS, the portable terminal device 1 receives the new BIOS from the I/O box 3, and writes the new BIOS file as substitute for an already existing BIOS, and judges whether or not the new BIOS is written, and starts the new BIOS or the already existing BIOS according to the judgement result. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable terminal device and a program for performing communication processing with a communication relay device when the device body is connected to the communication relay device.

[0002]

2. Description of the Related Art Conventionally, after carrying out business using a portable terminal device for processing slips, data stored in the portable terminal device (transaction data such as slips) is transmitted to a host device. However, at that time, in a state in which the portable terminal device is mounted on an input / output device called an I / O box that functions as a communication repeater / charger,
When the mobile terminal device gives an instruction to start data transmission, the BIOS (basic input ou
tput system) and the mobile terminal device and I /
By performing infrared communication or short-range wireless communication with the O box, transaction data in the mobile terminal device is uploaded and transmitted to the host device via the I / O box. On the other hand, downloading from the host device to the mobile terminal device is also performed via the I / O box. By the way, the BIOS is a basic system program for input / output control, and when rewriting the BIOS installed in the mobile terminal device, it is necessary to perform it after shifting to the rewriting mode by special startup. There is.

[0003]

In order to rewrite the BIOS installed in the portable terminal device as described above, a special environment and a special operation are required. The rewriting is not performed except in special cases, and the defective BIOS is used.
In the middle of rewriting the latest BIOS, if the rewriting operation is interrupted while being rewritten halfway due to an error or the like, the mobile terminal device may become inoperable thereafter. It was not possible to easily rewrite the BIOS.

An object of the present invention is to write new data stored in a communication relay device as a substitute for existing data stored in the device main body while the device main body is connected to the communication relay device. According to the presence / absence of this new data, the process based on the new data or the process based on the existing data can be selectively executed.

[0005]

The invention according to claim 1 is
A mobile terminal device that performs communication processing with a communication relay device in a state where the device body is connected to the communication relay device, wherein the new data is stored on the basis of new data stored in the communication relay device. When it is determined that new data needs to be captured by the determination unit that determines whether it is necessary to capture the new data, the new data is received from the communication relay device, and the new data is stored in the device body. Existing writing means for writing as an alternative to existing data, and when new data is written by this writing means, processing based on this new data is executed, and when new data is not written, And processing control means for executing processing based on existing data. Furthermore, for the computer,
A program for realizing the main functions shown in the invention described in claim 1 is provided (the invention described in claim 6).

Therefore, the inventions according to claims 1 and 6 are as follows:
With the device body connected to the communication relay device, it is determined based on the new data stored in the communication relay device whether it needs to be imported. Since the data is received and written, it is not necessary for the user to perform special operations or be aware of the writing, and new data can be reliably obtained without imposing an extra burden on the user. In addition to writing new data as an alternative to the existing data built in the device body, it is possible to selectively execute processing based on new data or processing based on existing data depending on the presence or absence of new data. Therefore, even if data is written halfway due to an error while writing new data, processing based on existing data is performed. Can be performed, it is possible to reliably prevent the portable terminal device is inoperable.

The invention according to claim 1 may be as follows. The determination means determines whether or not the new data needs to be fetched along with the communication processing with the communication relay device, and the new data is transmitted from the communication relay device after or before the communication processing is executed. It is received (the invention according to claim 2). Therefore, according to the invention of claim 2, in addition to the same effect as that of the invention of claim 1, it is necessary to take in new data, for example, when uploading slip data or downloading various files. If you need to determine
It is possible to receive new data from the communication relay device and perform automatic writing before or after execution of uploading or downloading.

The discriminating means discriminates whether or not the new data needs to be taken in when the device main body is connected to the communication relay device (the invention according to claim 3). Therefore, according to the invention described in claim 3, in addition to the same effect as the invention described in claim 1, new data can be automatically written only by connecting the device body to the communication relay device.

Update means for updating the reception status indicating to which block each time the new data is divided into a plurality of blocks and transmitted from the communication relay device, and the received data is updated. Means for requesting the communication relay device to transmit the next block by transmitting the reception status updated by the means to the communication relay device, and the data for all blocks forming the new data is provided. Receive and write (claim 4)
Invention described). Therefore, according to the invention described in claim 4, in addition to having the same effect as that of the invention described in claim 1, the new data transmitted from the communication relay device is transmitted after being divided into a plurality of blocks. Therefore, it is possible to divide into a plurality of blocks and receive without receiving all of a large amount of new data at one time, making the user feel that new data is being received, or hindering the user's work. Also, each time the divided data is received, the reception status indicating which block has been received is updated, and the communication relay apparatus is requested to transmit the next block by transmitting this reception status to the communication relay apparatus. By doing so, it becomes possible to sequentially receive the data of all blocks constituting the new data and surely write the data.

A portable terminal device having an input / output control program for controlling an input / output peripheral device and performing communication processing with the communication relay device according to the input / output control program, the built-in device comprising: The existing existing I / O control program includes an alternative program writing process. By executing this alternative program writing process, it is determined whether or not the new program needs to be incorporated with the revision of the own program, and it is necessary to incorporate the new program. In this case, as an alternative to the existing built-in program, the new program is received and written from the communication relay device (the invention according to claim 5). Therefore, according to the fifth aspect of the present invention, by executing the alternative program writing process included in the existing input / output control program, it is determined whether or not the new program needs to be loaded in accordance with the revision of the own program. However, when it is necessary to import, a new program can be received and written from the communication relay device as an alternative to the existing built-in program, and the defective existing program can be replaced with the new program. It has the same effect as the invention described in 1.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION (First Embodiment) A first embodiment of the present invention will be described below with reference to FIGS. Figure 1
FIG. 1 is a block diagram showing an overall configuration of a mobile terminal communication system in this embodiment. This mobile terminal communication system is used when uploading data (transaction data such as slips) accumulated in the mobile terminal device 1 for processing slips to the host device 2 or downloading a master file or the like from the host device 2 side. In the state where the mobile terminal device 1 is placed on the I / O box 3, when the mobile terminal device 1 issues an instruction to start data communication, a BIOS (basic input output) built in the mobile terminal device 1 is issued.
system) and portable terminal device 1 and I / O
By performing infrared communication or short-range wireless communication with the box 3, upload processing or download processing is performed with the host device 2 via the I / O box 3.

The host device 2 uploads and collects transaction data transmitted from each mobile terminal device 1, and responds to a request from the mobile terminal device 1 by transmitting a master file or the like to the mobile terminal of the request source. Download to device 1. The host device 2 and the I / O box 3 are connected to each other via a private line network 4. I / O
The box 3 functions as a communication repeater / charger, and when the mobile terminal device 1 is placed on the I / O box 3, data is exchanged between the mobile terminal device 1 and the host device 2. It relays communication and charges a secondary battery in the mobile terminal device 1.

FIG. 2 is a block diagram showing basic components of the mobile terminal device 1. The CPU 11 is the storage device 1.
It is a central processing unit that controls the overall operation of the mobile terminal device 1 in accordance with the operating system and various application software in 2. The storage device 12 has a program storage area and a data storage area. In the program storage area, various application programs and the like are stored in addition to the operating system. Tables, files, etc. are stored, and are configured by magnetic, optical, semiconductor memory, etc. and their drive system. This recording device 1
2 is a fixed memory such as a hard disk, CD-R
A configuration in which a removable storage medium such as an OM or a DVD can be mounted may be used. Programs and data in the storage device 12 are stored in a RAM (for example, static R
(AM) 13 or data in the RAM 13 is saved in the storage device 12. The RAM 13 has a program execution area and a work area.

In the flash memory on the motherboard, the existing BIOS area 14A and the new BIOS area are stored.
An alternative area 14B is provided. This existing BIOS
Area 14A is a BIOS installed at the time of product shipment as an I / O control program for controlling I / O peripheral devices.
The new BIOS replacement area 14B is an area for storing files, and is an area for storing a new BIOS file corresponding to the revision of the existing BIOS as an alternative to the existing BIOS. In this case, only the existing BIOS exists when the product is shipped. This existing BIOS is an alternative BIOS
This alternative BIOS write process includes a write process.
It is determined whether or not the new BIOS needs to be loaded according to the revision of the IOS, and when it is necessary, the I / O is used as a substitute BIOS for the existing built-in BIOS.
This is a processing routine for receiving the new BIOS transmitted from the O box 3 and writing it in the new BIOS alternative area 14B.

The I / O box attachment detection unit 15 has, for example, a micro switch, and when the mobile terminal device 1 is placed on the I / O box 3, the micro switch is turned on. , The mobile terminal device 1 is I
It is detected that it is connected to the / O box 3, and the detection signal is given to the CPU 11. Communication device 16
Means that while the mobile terminal device 1 is placed on the I / O box 3, the mobile terminal device 1 and the I / O box 3 are
It is a communication interface for performing infrared communication or short-range wireless communication with and. On the other hand, an input device 17 and a display device 18 are connected to the CPU 11 as other input / output peripheral devices via a bus line, and the CPU 11 controls their operations according to an input / output program. The input device 17 is an operation unit that constitutes a pointing device such as a keyboard, a touch panel, or a touch input pen, and inputs character string data and various commands. The display device 18 is a liquid crystal display device or the like that performs full-color display.

FIG. 3 is a diagram showing the cache memory 31 in the I / O box 3. This cache memory 3
In “1”, “version information” and “new BIOS file” are stored. "New BIOS file",
The “version information” is a new BIOS file transmitted from the host device 2 and its version information every time the BIOS file is revised. I / O box 3
Each time the host device 2 transmits a new BIOS file and its version information, the "new BIOS file" and "version information" in the cache memory 31 are updated and rewritten. Therefore, I / O
Box 3 always saves the latest BIOS file and its version information.

Next, the operation algorithm of the portable terminal communication system in the first embodiment will be described with reference to the flow charts shown in FIGS. Here, each function described in these flowcharts is stored in the form of a readable program code, and the operation according to this program code is sequentially executed. Also,
It is also possible to sequentially execute the operation according to the above-mentioned program code transmitted via the transmission medium. This is the same in other embodiments described later, and it is also possible to execute the operation peculiar to this embodiment using a program / data externally supplied via a transmission medium in addition to the recording medium.

When showing the communication processing between the mobile terminal device 1 and the I / O box 3, FIG. 4 is a flow chart showing the I / O box communication processing executed on the mobile terminal device 1 side. 5 is a flowchart showing a terminal communication process executed on the I / O box 3 side. The I / O box communication process of FIG. 4 is started when the power of the mobile terminal device 1 is turned on. First, the mobile terminal device 1 is based on the detection signal from the I / O box attachment detection unit 15. Monitor whether or not the device body is attached to the I / O box 3 (step A1 in FIG. 4), and when the device body is placed on the I / O box 3, an instruction from the user is given. When the execution mode instructed is read (step A2), the execution mode instructing upload or the execution mode instructing download is determined (step A3).

When an upload is instructed, an upload command is issued to the host device 2 via the I / O box 3 (step A4), and then transaction data such as a slip is read out and the I / O box is read. Three
Upload processing is performed to transmit to the host device 2 via (step A5). When the download is instructed, a download command is issued to the host device 2 via the I / O box 3 (step A6), and then transmitted from the host device 2 via the I / O box 3. Download processing is performed to receive data such as the master file (step A7).

On the other hand, on the I / O box 3 side, when any command is received from the portable terminal device 1 in the command waiting state from the portable terminal device 1 (step B1 in FIG. 5), it receives an upload request or a download request. (Step B2), and when the upload request or the download request is received, the data communication associated with the upload / download processing performed between the mobile terminal device 1 and the host device 2 is relayed ( (Steps B3, B4)

Immediately after execution of such upload / download processing, the existing BI is
The alternative BIOS writing process included in the OS is activated. In this case, it is determined whether or not a new BIOS needs to be imported, and if it is necessary to receive the new BIOS, the new BIOS stored in the I / O box 3 is received as an alternative BIOS for the existing built-in BIOS. And writes it in the new BIOS alternative area 14B (step A8).
~ A12). That is, on the portable terminal device 1 side, a version information transmission request is issued to the I / O box 3 (step A8 in FIG. 4). Upon receiving this transmission request (step B5 in FIG. 5), the I / O box 3 reads the "version information" from the cache memory 31 and transmits it to the requesting portable terminal device 1 (step B6).

The mobile terminal device 1 receives the version information from the I / O box 3 (step A in FIG. 4).
9) The version information corresponding to the self (existing BIOS) is read and compared with the received version information, and it is determined whether the version information of the self is older than the received version information (step A10). Here, if the version information of both is the same (if the version information of its own is not old), this flow ends at this point, but if the version information of its own is older, the I / O box 3 To request transmission of a new BIOS (step A11).

Then, the I / O box 3 has the new B
When the IOS transmission request is received (step B7 in FIG. 5), the "new BIOS file" is read from the cache memory 31 and transmitted to the requesting portable terminal device 1 (step B8). When the mobile terminal device 1 receives the new BIOS file transmitted from the I / O box 3 (step A12 in FIG. 4), the new BI file is transferred to the new BI file.
While writing to the OS alternative area 14B (step A1
3) The "BIOS update flag" is set to indicate that the new BIOS has been written as an alternative to the existing BIOS (step A14).

FIG. 6 is a flowchart showing a process at power-on which is started when the mobile terminal device 1 is powered on. First, the mobile terminal device 1 reads the “BIOS update flag” when the power is turned on (step C
1) By checking the presence or absence of this flag, it is determined whether or not a new BIOS is written as an alternative to the existing BIOS (step C2). Here, "BI
If there is no "OS update flag", the existing BIOS area 14
A is accessed to activate the existing BIOS (step C4), but if there is a "BIOS update flag", a new B
The new BIOS is accessed by accessing the IOS alternative area 14B.
Boot as an alternative to the existing BIOS (Step C
3).

As described above, in the first embodiment, the "new BIOS" stored in the I / O box 3 with the portable terminal device 1 placed on the I / O box 3 and connected thereto. Based on the "version information" of "File", it is determined whether or not the "new BIOS file" needs to be imported, and if it is necessary, the new BIOS file is received from the I / O box 3 and the new BIOS replacement area is received. Since it is written in the 14B, the user does not need to perform a special operation or be aware of writing the new BIOS, and the new BIOS file can be surely obtained without imposing an extra burden on the user. It will be possible. Also, a new BI is used as an alternative to the existing BIOS file.
While writing the OS file, a new BI is used as an alternative to the existing BIOS depending on the presence or absence of the "BIOS update flag"
It is determined whether or not the OS is written, and the new BIOS or the existing BIOS is started according to the result of the determination. Even when written, the processing based on the existing BIOS can be executed, and it is possible to reliably prevent the mobile terminal device 1 from becoming inoperable.

In this case, the portable terminal device 1 receives I / O data when uploading or downloading data to / from the host device 2 via the I / O box 3.
Request to send version information to Box 3,
Based on the version information sent in response to this, it is determined whether or not a new BIOS needs to be loaded,
If it is necessary to import the new BIOS, the new BIOS can be received from the I / O box 3 and automatically written after the execution of the upload process or the download process. Therefore, it is not necessary for the user to perform a special operation or be aware of writing the new BIOS, and the new BIOS can be added without imposing an extra burden on the user.
It becomes possible to reliably obtain the S file.

In the first embodiment described above,
The mobile terminal device 1 determines whether it is necessary to import a new BIOS when uploading or downloading data to or from the host device 2 via the I / O box 3, and if it is necessary, uploading is performed. Although the new BIOS is received from the I / O box 3 and written after executing the processing or the download processing, before executing the upload processing or the download processing,
A new BIOS may be received from the I / O box 3 and automatically written.

Further, the portable terminal device 1 is connected to the I / O box 3
It may be possible to determine whether or not a new BIOS needs to be loaded when it is placed on the PC and connected. In this case, the new BIOS can be automatically written only by placing the mobile terminal device 1 on the I / O box 3. In addition, when the portable terminal device 1 is mounted on the I / O box 3 and connected for the purpose of charging the secondary battery in the portable terminal device 1, not only when uploading or downloading to / from the host device 2. Alternatively, it may be determined whether or not a new BIOS needs to be imported.

Existing BIO in the first embodiment described above
S includes an alternative BIOS writing process, and this alternative BIOS
The writing process is performed by updating the new BI with the revision of the BIOS.
It is determined whether the OS needs to be loaded, and when the OS needs to be loaded, the new BIOS is received from the I / O box 3 and written in the new BIOS alternate area 14B as an alternative to the built-in existing BIOS. Therefore, after writing the new BIOS, the new BIOS will operate in place of the existing BIOS, but while the new BIOS is operating, the command with the new BIOS is received from the I / O box 3. In this case, the existing BIOS is temporarily activated and the existing BI is
Execute the alternative BIOS write process included in the OS,
The latest BIOS file may be received from the I / O box 3 and written in the new BIOS alternative area 14B. That is, the existing BI built in at the time of product shipment
The OS file may be activated each time the revision is performed, the latest BIOS file may be received, and the new BIOS alternative area 14B may be written. In this case, after writing the latest BIOS file, the latest BIOS operates in place of the old BIOS.

In the first embodiment described above,
Existing B that has built-in alternative BIOS writing process at the time of product shipment
Although it is included only in the IOS file, the alternative BIOS writing process may be included in the new BIOS file.
In this case, it is determined whether or not the latest BIOS needs to be loaded while operating in the existing BIOS or the new BIOS, and if it needs to be loaded, the existing BIOS is loaded.
Of the area 14A and the new BIOS alternative area 14B,
On the other hand, for example, the latest BIOS may be written in the area corresponding to the non-operating BIOS. Also,
The old BIOS may be determined, the BIOS area in which this BIOS is stored may be initialized, and the latest BIOS may be written to that area. By this, BIO
Every time S is revised, the contents of the existing BIOS area 14A and the new BIOS alternative area 14B can be rewritten alternately, and the BIOS in each area can be updated, and the defective old BIOS is not operated. In addition, the latest BIOS can be written under the operation of the new BIOS.

(Second Embodiment) A second embodiment of the present invention will be described below with reference to FIGS. 7 to 9. In addition,
In the above-described first embodiment, the portable terminal device 1 receives all new BIOS files from the I / O box 3 and writes them after executing the upload process or the download process if it is necessary to import the new BIOS. However, the mobile terminal device 1 according to the second embodiment
Is a divided BIOS in which a new BIOS file is divided into a plurality of blocks and transmitted from the I / O box 3 after execution of upload processing or download processing.
Every time a divided BIOS is received, the reception status indicating up to which block has been received is updated, and this reception status is transmitted to the I / O box 3 to receive the I / O box. 3 is requested to be transmitted in the next block. Here, basically the same components in both embodiments are denoted by the same reference numerals, and the description thereof will be omitted. In addition, the characteristic part of the second embodiment will be mainly described below.

FIG. 7A is a diagram showing the cache memory 31 in the I / O box 3. The cache memory 31 has "version information" and "divided BIOS".
(1) to (4) "are stored. "Split BIOS
(1) to (4) "are obtained by sequentially dividing the new BIOS file into a plurality of blocks (4 blocks in the second embodiment). Then, as in the above-described first embodiment, “divided BIOS (1) to (4)” and “version information” are the new BIOS file transmitted from the host device 2 and its version information, and / O
The box 3 indicates that this new BI file is sent every time the new BIOS file and its version information are transmitted from the host device 2.
The OS file is divided into a plurality of blocks, the contents of the “divided BIOS (1) to (4)” and “version information” in the cache memory 31 are updated and rewritten. In this case, when transmitting a new BIOS file to the mobile terminal device 1, the "divided BIOS"
(1) to (4) "are divided into blocks and transmitted in order.

FIG. 7B shows the RAM on the side of the portable terminal device 1.
It is the figure which showed the content of 13. The RAM 13 includes a reception status memory 13A that stores a reception status indicating up to which block of a new BIOS file that has been divided into a plurality of blocks, and a work memory 13B that temporarily stores the received divided BIOS. It is provided.
The reception status memory 13A displays “divided BIOS (1) to
(4) ”and the division identification information (1) to
Among (4), the division identification information corresponding to the division BIOS received up to the present time is stored, and the mobile terminal device 1 updates the value of the reception status memory 13A by "1" each time the division BIOS is received. This reception status memory 13A
Is read out and transmitted to the I / O box 3, thereby requesting the I / O box 3 to transmit the next block.

FIG. 8 is a flowchart showing an I / O box communication process executed on the side of the mobile terminal device 1 when the communication process is shown between the mobile terminal device 1 and the I / O box 3. 9 is a flowchart showing a terminal communication process executed on the I / O box 3 side. First, as in the first embodiment described above, when the device body is placed on the I / O box 3 (step D1 in FIG. 8), the mobile terminal device 1 executes the execution mode instructed by the user. Is read (step D2), and it is determined whether it is an upload instruction or a download instruction according to the execution mode (step D3).

If the upload is instructed, an upload command is issued to the host device 2 via the I / O box 3 (step D4), and then data upload processing is performed with the host device 2. Perform (step D5). Also, when download is instructed,
After issuing a download command to the host device 2 via the I / O box 3 (step D6), the host device 2
Download data from and to (step D
7). On the other hand, on the I / O box 3 side, if any command is received from the mobile terminal device 1 in the command waiting state (step E1 in FIG. 9), if it is an upload request / download request (step E).
2) relay the upload / download processing performed between the mobile terminal device 1 and the host device 2 (steps E3 and E4).

Immediately after executing the upload / download processing, the portable terminal device 1 makes a request for transmitting version information to the I / O box 3 (step D8 in FIG. 8), and the I / O box 3 When this transmission request is received (step E5 in FIG. 9), the "version information" is read from the cache memory 31 and transmitted to the requesting portable terminal device 1 (step E6). The mobile terminal device 1 is
When the version information from the I / O box 3 is received (step D9 in FIG. 8), it is determined whether the version information of its own is older than the received version information (step D10). To access the I / O box 3 to read the reception status (step D11).

When the I / O box 3 receives the reception status from the portable terminal device 1 (step E7 in FIG. 9), the I / O box 3 accesses the cache memory 31 based on the reception status,
Next, a divided BIOS for one block is selected and read out for all transmissions (step E8), and this divided BIOS is transmitted to the requesting portable terminal device 1 (step E9). That is, this reception status is the same as the previous divided BIOS that has been transmitted.
Since it is the division identification information indicating S, the previous divided BIOS that has been transmitted is specified based on this reception status, and the divided BI for the next one block following the previous divided BIOS is specified.
The OS is selected from the cache memory 31 and transmitted to the mobile terminal device 1 which is the request source.

The portable terminal device 1 receives the divided BIOS from the I / O box 3 (step D1 in FIG. 8).
2) After temporarily storing the received divided BIOS in the work memory 13B (step D13), the reception status memory 03
Update processing is performed to increase the value of A by "1" (step D
14). Then, by checking whether the value in the reception status memory 13A indicates the final block, it is checked whether the reception for all blocks has been completed (step D15). If it is not completed, this flow ends. , When the divided BIOS for all blocks is received, the work memory 1
Divided BIOS for all blocks temporarily stored in 3B
Are sequentially read and written in the new BIOS alternative area 14B (step D16), and then the "BIOS update flag" is set (step D17).

As described above, in the second embodiment, the I / I
Since the new BIOS sent from the / O box 3 is sent after being divided into a plurality of blocks, it is necessary to divide it into a plurality of blocks and receive it without receiving a large amount of all new BIOS at once. Can be done, new BIO
It does not make the user feel that the S is being received or hinder the user's work. In addition, each time the divided BIOS is received, the reception status indicating which block has been received is updated, and this reception status is transmitted to the I / O box 3, thereby transmitting the next block to the I / O box 3. Since the request is made, it becomes possible to sequentially receive the data of all the blocks forming the new BIOS and to write the data surely.

In the second embodiment described above, when the divided BIOS for all blocks is received immediately after execution of the upload / download processing, the divided BIOS for all blocks is read from the work memory 13B and a new BIOS is read. I tried to write in the alternative area 14B,
Immediately after executing upload / download processing, split B
It is also possible that only the IOS is received and the writing from the work memory 13B to the new BIOS alternative area 14B is performed using the idle time waiting for the key input. Also, from the work memory 13B to the new BIOS alternative area 1
Writing to 4B may be performed when the power is off.

In addition, as shown in the modified application example of the first embodiment described above, also in the second embodiment, it is determined whether or not a new BIOS needs to be loaded before executing the upload process or the download process. By doing so, the divided BIOS may be received from the I / O box 3. In addition, the mobile terminal device 1 I / O
The divided BIOS may be received from the I / O box 3 by determining whether or not a new BIOS needs to be loaded when it is placed on the box 3 and connected.

In the first and second embodiments described above, the portable terminal device 1 determines whether or not it is necessary to take in a new BIOS based on its version information, but it is transmitted from the I / O box 3. It may be determined whether or not it is necessary to import a new BIOS according to the instruction information indicating the presence or absence of the version change that is made.
In this case, the I / O box 3 holds the instruction information indicating the presence / absence of the version change transmitted from the host device 2, and the portable terminal device 1 is placed in the I / O box 3 in a state of being held. , I / O box 3 may transmit instruction information indicating the presence / absence of a version change to mobile terminal device 1.

In each of the above-described embodiments, the mobile terminal device 1 has the BI stored in the I / O box 3.
I tried to receive and write the OS file, but BIO
Not limited to the writing of the S file, various master files or image images may be received and written, and the writing target data is arbitrary. Further, in each of the above-described embodiments, the host device 2 and the I / O box 3 are connected via the private line network 4, but they may be connected via a wide area communication network such as the Internet. Good.

On the other hand, a recording medium (for example, a CD-ROM, a floppy disk, a RAM card, etc.) in which the program codes for executing the above-mentioned means are recorded may be provided to the computer.
That is, the recording medium has a computer-readable program code, and when the device body is connected to the communication relay device, the new data is stored based on the new data stored in the communication relay device. A function to determine whether it is necessary to capture, and when it is determined that new data needs to be captured, new data is received from the communication relay device and substitutes for the existing data built in the device body. And a function to execute processing based on this new data when new data is written, and to execute processing based on the existing data when new data is not written. You may make it provide the computer-readable recording medium which recorded the program for implement | achieving.

[0045]

According to the present invention (the invention according to claim 1), it is necessary to fetch the new data based on the new data stored in the communication relay device while the device main body is connected to the communication relay device. If it is necessary to determine whether there is any, and if it is necessary to capture it, new data is received from the communication relay device and written, so there is no need for the user to perform special operations or be aware of the writing. , It is possible to reliably obtain new data without imposing an extra burden on the user. Also, new data is written as an alternative to the existing data built in the main body of the device, and new data is added depending on the existence of new data. Since the process based on the data or the process based on the existing data is selectively executed, the error may occur during the writing of new data. Even when written to odd, it is possible to perform the processing based on the existing data, it is possible to reliably prevent the portable terminal device is inoperable.

[Brief description of drawings]

FIG. 1 is a block diagram showing an overall configuration of a mobile communication system.

FIG. 2 is a block diagram showing basic components of the mobile terminal device 1.

FIG. 3 is a diagram showing a cache memory 31 in an I / O box 3.

FIG. 4 is a flowchart showing an I / O box communication process executed on the portable terminal device 1 side.

FIG. 5 is a flowchart showing a terminal communication process executed on the I / O box 3 side.

FIG. 6 is a flowchart showing a process at power-on which is started when the mobile terminal device 1 is powered on.

FIG. 7A is a diagram showing the cache memory 31 in the I / O box 3 in the second embodiment, and FIG.
The figure which showed the content of RAM13 of the portable terminal device 1 side.

FIG. 8 is a flowchart showing an I / O box communication process executed on the mobile terminal device 1 side in the second embodiment.

FIG. 9 is a flowchart showing a terminal communication process executed on the I / O box 3 side in the second embodiment.

[Explanation of symbols]

1 Mobile terminal device 2 Host device 3 I / O box 4 private line network 13A Reception status memory 14A Existing BIOS area 14B New BIOS alternative area 11 CPU 12 storage devices 15 I / O box mounting detector 16 Communication device 17 Input device

Claims (6)

[Claims] 1. A portable terminal device that performs communication processing with a communication relay device in the state where the device body is connected to the communication relay device, the new data being stored in the communication relay device. Based on the determination means for determining whether or not the new data needs to be fetched based on the above, when the determination means determines that the new data needs to be fetched, the new data is received from the communication relay device, When a new data is written by the writing means for writing as an alternative to the existing data built in the main body of the apparatus, and the new data is written by the writing means, the processing based on the new data is executed to write the new data. A mobile terminal device comprising: a control unit that executes a process based on the existing data if there is no such data. 2. The determining means determines whether or not the new data needs to be taken in along with the communication processing with the communication relay device, and the communication relay is performed after or before the execution of the communication processing. The mobile terminal device according to claim 1, wherein new data is received from the device. 3. The determination means determines whether or not the new data needs to be fetched when a device body is connected to the communication relay device. Mobile terminal device. 4. Update means for updating the reception status indicating to which block each time the new data is divided into a plurality of blocks and transmitted from the communication relay device, and the divided data is received. Transmission request means for requesting the communication relay device to transmit the next block by transmitting the reception status updated by the updating means to the communication relay device, and all the blocks forming the new data are provided. 2. The mobile terminal device according to claim 1, wherein the data is received and written. 5. A portable terminal device that incorporates an input / output control program for controlling an input / output peripheral device, and performs a communication process with the communication relay device according to the input / output control program, comprising: The existing existing input / output control program includes an alternative program writing process, and by executing this alternative program writing process, it is determined whether or not the new program needs to be taken in due to the revision of the own program, and the result is taken in. The mobile terminal device according to claim 1, wherein a new program is received and written from the communication relay device as an alternative to an existing built-in program when necessary. 6. Whether or not it is necessary for the computer to fetch the new data based on the new data stored in the communication relay device when the device main body is connected to the communication relay device. And the function of receiving new data from the communication relay device and writing it as an alternative to the existing data built in the device body when it is determined that new data needs to be taken in, and the new data. Is written, a function for executing processing based on the new data, and if new data is not written, a function for executing processing based on the existing data, and a program for realizing .